WO2012071954A1 - Process for cleaning melt melting and conveying system for chemical fibre spinning - Google Patents
Process for cleaning melt melting and conveying system for chemical fibre spinning Download PDFInfo
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- WO2012071954A1 WO2012071954A1 PCT/CN2011/080884 CN2011080884W WO2012071954A1 WO 2012071954 A1 WO2012071954 A1 WO 2012071954A1 CN 2011080884 W CN2011080884 W CN 2011080884W WO 2012071954 A1 WO2012071954 A1 WO 2012071954A1
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- melt
- spinning
- conveying system
- screw machine
- chemical fiber
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/04—Cleaning spinnerettes or other parts of the spinnerette packs
Definitions
- the present invention relates to a method of cleaning a chemical fiber spinning melt delivery system.
- the chemical fiber melt spinning method is one of the methods for manufacturing and processing synthetic fibers.
- the fiber-reinforced polymer resin material is heated, extruded and melted by a spinning screw machine to form a high-temperature, high-viscosity high-polymer melt which is uniformly stable and has a certain pressure.
- the body is continuously and uniformly extruded from the small hole of the spinning assembly by a precision spinning metering pump, and the spun yarn is solidified into a filament in a spinning tunnel by air or a cold water bath.
- the high polymer melt forms a high temperature, high pressure, high viscosity non-Newtonian fluid in the spinning system, and will deposit and adhere to the chemical fiber spinning melt conveying system (including the screw machine, The melt filter, the metering pump and the conveying pipe connecting the screw machine, the melt filter and the metering pump form a deposit, and the substance is difficult to remove after a long period of high temperature and high pressure, and the normal spinning production is performed.
- Very unfavorable directly affecting product quality. More importantly, many spinning production lines add other additives to the main raw materials, such as matting agents, dye masterbatch, antistatic masterbatch, etc., which are more likely to form deposits attached to chemical fiber spinning.
- it is very unfavorable for spinning, which directly affects the quality of the product. Especially when producing a certain color product, other colors occasionally come out, which is especially bad when producing pure white varieties.
- the conventional cleaning method is to clean the chemical fiber spinning melt transfer system by means of discharge before the production of the spinning, and the spinning assembly is cleaned by another method.
- the chemical fiber spinning melt transfer system is connected to the spinning assembly through a conveying pipe to form a spinning system.
- the conventional cleaning method is: the chemical fiber spinning melt conveying system is set to be higher than the spinning pressure and the spinning temperature in the normal production spinning, and is normally fed, and the chemical fiber spinning melt is melted through a large amount of discharge. The deposits in the delivery system are carried out.
- the above method has obvious disadvantages: the chemical fiber spinning melt conveying system cannot be completely cleaned; the raw material waste is serious.
- the technical problem to be solved by the present invention is to provide a method for thoroughly removing the deposit of the chemical fiber spinning melt conveying system and saving the raw material of the clean chemical fiber spinning melt conveying system.
- the technical solution adopted by the present invention is: a method for cleaning a chemical fiber spinning melt conveying system, and the specific method comprises the following steps: First, the chemical fiber spinning melt conveying system discharges, when and each After the melt is normally discharged from the conveying pipe connected to the metering pump, the gate valve under the spinning silo is closed; then the water is added to the residual material in the feeding pipe above the screw machine by 0.1 ⁇ 5L, and the added water is added by the above After the material is fully absorbed, it enters the melt spinning and conveying system of the chemical fiber spinning; when the residual material of the water enters the metering section of the screw machine, 1 ⁇ 5Kg of raw material is added to the screw machine, and when the raw material enters the compression melting section of the screw machine, The chemical fiber spinning melt conveying system is immediately shut down and kept in a shutdown state for 10 to 60 minutes; then, in the case where the screw machine is not fed, the chemical fiber spinning melt conveying system is restarted, and the entire chemical fiber spinning
- the water addition time in the step (2) is preferably controlled to 0.5 to 2 minutes.
- the invention has the beneficial effects that the water is rapidly boiled and rapidly expanded in a high-temperature, high-pressure, sealed melt-melting conveying system, thereby rinsing the deposits attached to the entire chemical fiber spinning melt conveying system, with the melt Discharge together.
- the cleanliness is obvious and the raw materials are saved.
- the method for cleaning a chemical fiber spinning melt transfer system comprises: first, when the chemical fiber spinning melt transfer system is officially discharged, when the transfer pipe is connected to each metering pump (the original is After the melt is normally discharged from the metering pump and the spinning assembly, close the gate valve below the spinning silo (above the screw machine) and then to the feeding tube above the screw machine (located in the gate valve and screw) Adding water to the remaining material in the machine feed inlet is 0.1 ⁇ 5L, and the water addition time is controlled within 0.5 ⁇ 2 minutes. The added water is fully absorbed by the above residual materials and then enters the chemical fiber spinning melt transfer conveying system.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Disclosed is a process for cleaning a melt melting and conveying system for chemical fibre spinning which removes the deposits in the melt melting and conveying system for chemical fibre spinning and economizes feedstock. First, the melting and conveying system for chemical fibre spinning discharges normally; then a gate valve below a spinning feed bin is closed after all conveying pipes connected respectively to each metering pump have melt discharged normally therefrom; 0.1-5L water is added into the remaining feedstock in a feed pipe on top of a screw machine; 1-5kg of feedstock is further added into the screw machine after the hydrated feedstock is charged into the metering section of the screw machine; the melt melting and conveying system for chemical fibre spinning is shut off and maintained in the shut-off condition for 10 to 60 minutes while the feedstock is charged into the compressing and melting section of the screw machine; and then when the screw machine is not fed with materials, the melt melting and conveying system for chemical fibre spinning is restarted and the melt in the whole melting and conveying system for chemical fibre spinning is discharged completely.
Description
技术领域Technical field
本发明涉及一种清洁化纤纺丝熔体熔融输送系统的方法。The present invention relates to a method of cleaning a chemical fiber spinning melt delivery system.
背景技术Background technique
化纤熔融纺丝方法是制造加工合成纤维的方法之一，利用纺丝螺杆机将纤维级高分子树脂材料加热、挤压、熔融形成均匀稳定并具有一定压力的高温、高粘度的高聚物熔体，再利用精密纺丝计量泵连续、均匀地从纺丝组件的小孔中压出，纺出的丝束在纺丝甬道中用空气或冷水浴凝固成细丝。在化纤熔融纺丝生产过程中，高聚物熔体在纺丝系统内形成高温、高压、高粘度的非牛顿流体，会沉积附着在化纤纺丝熔体熔融输送系统内（包括将螺杆机、熔体过滤器、计量泵及将螺杆机、熔体过滤器、计量泵连接在一起的输送管道）形成沉积物，此类物质经长时间的高温高压后，难以清除，对正常的纺丝生产很不利，直接影响产品品质。更为重要的是，很多纺丝生产线因为生产需要，会在主要原料中加入其它的添加剂，比如消光剂、染色母粒、抗静电母粒等，这些成分更容易形成沉积物附着在化纤纺丝熔体熔融输送系统中，对纺丝很不利，直接影响产品品质，尤其是在生产某种颜色的产品时，会偶尔出来其它的颜色，这种情况在生产纯白色品种时尤其糟糕。The chemical fiber melt spinning method is one of the methods for manufacturing and processing synthetic fibers. The fiber-reinforced polymer resin material is heated, extruded and melted by a spinning screw machine to form a high-temperature, high-viscosity high-polymer melt which is uniformly stable and has a certain pressure. The body is continuously and uniformly extruded from the small hole of the spinning assembly by a precision spinning metering pump, and the spun yarn is solidified into a filament in a spinning tunnel by air or a cold water bath. In the production process of chemical fiber melt spinning, the high polymer melt forms a high temperature, high pressure, high viscosity non-Newtonian fluid in the spinning system, and will deposit and adhere to the chemical fiber spinning melt conveying system (including the screw machine, The melt filter, the metering pump and the conveying pipe connecting the screw machine, the melt filter and the metering pump form a deposit, and the substance is difficult to remove after a long period of high temperature and high pressure, and the normal spinning production is performed. Very unfavorable, directly affecting product quality. More importantly, many spinning production lines add other additives to the main raw materials, such as matting agents, dye masterbatch, antistatic masterbatch, etc., which are more likely to form deposits attached to chemical fiber spinning. In the melt-melting conveyor system, it is very unfavorable for spinning, which directly affects the quality of the product. Especially when producing a certain color product, other colors occasionally come out, which is especially bad when producing pure white varieties.
为了保持纺丝系统的清洁，常规的清洁方法是在正式生产纺丝前，通过排料的方式清洁化纤纺丝熔体熔融输送系统，而纺丝组件则用另外的方法清洁。化纤纺丝熔体熔融输送系统通过输送管道与纺丝组件连接形成纺丝系统。常规的清洁方法是：化纤纺丝熔体熔融输送系统设定为高于正常生产纺丝时的纺丝压力和纺丝温度，并正常投料，通过大量的排料以期把化纤纺丝熔体熔融输送系统内的沉积物带出。但上述方式存在明显的缺点：不能将化纤纺丝熔体熔融输送系统完全清理干净；原料浪费严重。In order to keep the spinning system clean, the conventional cleaning method is to clean the chemical fiber spinning melt transfer system by means of discharge before the production of the spinning, and the spinning assembly is cleaned by another method. The chemical fiber spinning melt transfer system is connected to the spinning assembly through a conveying pipe to form a spinning system. The conventional cleaning method is: the chemical fiber spinning melt conveying system is set to be higher than the spinning pressure and the spinning temperature in the normal production spinning, and is normally fed, and the chemical fiber spinning melt is melted through a large amount of discharge. The deposits in the delivery system are carried out. However, the above method has obvious disadvantages: the chemical fiber spinning melt conveying system cannot be completely cleaned; the raw material waste is serious.
发明内容Summary of the invention
本发明所要解决的技术问题是：提供一种能彻底清除化纤纺丝熔体熔融输送系统中的沉积物并能节约原料的清洁化纤纺丝熔体熔融输送系统的方法。The technical problem to be solved by the present invention is to provide a method for thoroughly removing the deposit of the chemical fiber spinning melt conveying system and saving the raw material of the clean chemical fiber spinning melt conveying system.
为解决上述技术问题，本发明采用的技术方案为：一种清洁化纤纺丝熔体熔融输送系统的方法，具体方法包括如下：首先，化纤纺丝熔体熔融输送系统排料，当与每个计量泵分别相连的输送管道中均有熔体正常流出后，关闭纺丝料仓下方的闸板阀；然后向螺杆机上方的加料管内的余料中加水0.1~5L，加入的水被上述余料充分吸收后进入化纤纺丝熔体熔融输送系统；当含水的余料进入螺杆机的计量段后，再向螺杆机内加入1~5Kg原料，当该原料进入到螺杆机压缩熔融段时，使化纤纺丝熔体熔融输送系统立即停机，并保持停机状态10~60分钟；然后在螺杆机不进料的情况下，重新启动化纤纺丝熔体熔融输送系统，将整个化纤纺丝熔体熔融输送系统中的熔体全部排出。In order to solve the above technical problems, the technical solution adopted by the present invention is: a method for cleaning a chemical fiber spinning melt conveying system, and the specific method comprises the following steps: First, the chemical fiber spinning melt conveying system discharges, when and each After the melt is normally discharged from the conveying pipe connected to the metering pump, the gate valve under the spinning silo is closed; then the water is added to the residual material in the feeding pipe above the screw machine by 0.1~5L, and the added water is added by the above After the material is fully absorbed, it enters the melt spinning and conveying system of the chemical fiber spinning; when the residual material of the water enters the metering section of the screw machine, 1~5Kg of raw material is added to the screw machine, and when the raw material enters the compression melting section of the screw machine, The chemical fiber spinning melt conveying system is immediately shut down and kept in a shutdown state for 10 to 60 minutes; then, in the case where the screw machine is not fed, the chemical fiber spinning melt conveying system is restarted, and the entire chemical fiber spinning melt is melted. The melt in the melt delivery system is completely discharged.
进一步地，步骤（2）中的加水时间最好控制在0.5~2分钟。Further, the water addition time in the step (2) is preferably controlled to 0.5 to 2 minutes.
本发明的有益效果是：利用水在高温、高压、密封的熔体熔融输送系统中迅速沸腾、急遽膨胀，从而对附着在整个化纤纺丝熔体熔融输送系统的沉积物进行冲洗，随熔体一起排出。清洁度明显，还节省了原料。The invention has the beneficial effects that the water is rapidly boiled and rapidly expanded in a high-temperature, high-pressure, sealed melt-melting conveying system, thereby rinsing the deposits attached to the entire chemical fiber spinning melt conveying system, with the melt Discharge together. The cleanliness is obvious and the raw materials are saved.
具体实施方式detailed description
下面详细描述本发明的具体实施方案。Specific embodiments of the invention are described in detail below.
根据本发明的清洁化纤纺丝熔体熔融输送系统的方法，具体方法包括：首先，在化纤纺丝熔体熔融输送系统正式排料时，当与每个计量泵分别相连的输送管道（原来是连接计量泵和纺丝组件的）中均有熔体正常流出后，关闭纺丝料仓（位于螺杆机上方）下方的闸板阀，然后向螺杆机上方的加料管（位于闸板阀与螺杆机进料口之间）内的余料中加水0.1~5L，加水时间控制在0.5~2分钟内，加入的水被上述余料充分吸收后进入化纤纺丝熔体熔融输送系统，当含水的原料进入螺杆机的计量段后，再向螺杆机内加入1~5Kg原料，当该料进入到螺杆机压缩熔融段时，按化纤纺丝熔体熔融输送系统的急停按钮，整个化纤纺丝熔体熔融输送系统立即处于停机状态，并保持10~60分钟，在这段时间内，原料中的水骤遇高温，迅速沸腾、急遽膨胀，并充满整个化纤熔融纺丝输送系统，所到之处，所有的沉积物被清除下来，然后在螺杆机不进料的情况下，重新启动化纤纺丝熔体熔融输送系统，清洗下来的沉积物随化纤纺丝熔体熔融输送系统中的熔体一起排出，从而实现对化纤纺丝熔体熔融输送系统的清洁。上述方法省时省力，且节约原料。The method for cleaning a chemical fiber spinning melt transfer system according to the present invention comprises: first, when the chemical fiber spinning melt transfer system is officially discharged, when the transfer pipe is connected to each metering pump (the original is After the melt is normally discharged from the metering pump and the spinning assembly, close the gate valve below the spinning silo (above the screw machine) and then to the feeding tube above the screw machine (located in the gate valve and screw) Adding water to the remaining material in the machine feed inlet is 0.1~5L, and the water addition time is controlled within 0.5~2 minutes. The added water is fully absorbed by the above residual materials and then enters the chemical fiber spinning melt transfer conveying system. After the raw material enters the metering section of the screw machine, 1~5Kg of raw material is added to the screw machine. When the material enters the compression melting section of the screw machine, the entire chemical fiber spinning is performed according to the emergency stop button of the melt spinning and conveying system of the chemical fiber spinning. The melt-melting conveyor system is immediately shut down and kept for 10~60 minutes. During this time, the water in the raw material encounters high temperature, boils rapidly, swells rapidly, and fills the entire chemical fiber melt spinning conveyor. Wherever, all the sediments are removed, and then the chemical fiber spinning melt transfer system is restarted without the screw machine feeding, and the washed sediments are melted and transported with the chemical fiber spinning melt. The melt in the system is discharged together to achieve cleaning of the chemical fiber spinning melt delivery system. The above method saves time and effort and saves raw materials.
上文中提及的各部件皆为化纤纺丝熔体熔融输送系统的常用部件，各部件的命名皆为本领域技术人员习惯采用的，因而在此不采用附图详细解释。Each of the components mentioned above are common components of the melt spinning and melt conveying system of the chemical fiber, and the naming of each component is customary for those skilled in the art, and thus will not be explained in detail herein with reference to the drawings.
上述对本发明的详细描述仅是为了说明性的目的。显然，只要不背离本发明的范围，本领域技术人员可以做出各种变化和修改。因此，全部上述描述都应理解为示例性和非限制性的，本发明的范围仅由所附权利要求来限定。The above detailed description of the present invention has been presented for illustrative purposes only. Obviously, various changes and modifications can be made by those skilled in the art without departing from the scope of the invention. The above description is to be construed as illustrative and not restrictive
Claims (2)
1．一种清洁化纤纺丝熔体熔融输送系统的方法，其特征在于：它包括如下步骤， 1. A method for cleaning a chemical fiber spinning melt transfer system, characterized in that it comprises the following steps,
（1）化纤纺丝熔体熔融输送系统排料，当与每个计量泵分别相连的输送管道中均有熔体正常流出后，关闭纺丝料仓下方的闸板阀；(1) Discharge of the melt spinning conveying system of the chemical fiber spinning, when the melt is normally discharged from the conveying pipe respectively connected to each metering pump, the shutter valve under the spinning silo is closed;
（2）向螺杆机上方的加料管内的余料中加水0.1~5L，加入的水被上述余料充分吸收后进入化纤纺丝熔体熔融输送系统；(2) adding 0.1~5L of water to the residual material in the feeding pipe above the screw machine, the added water is fully absorbed by the above residual material and then enters the chemical fiber spinning melt conveying system;
（3）当含水的余料进入螺杆机的计量段后，再向螺杆机内加入1~5Kg原料，当该原料进入到螺杆机压缩熔融段时，使化纤纺丝熔体熔融输送系统停机，保持停机状态10~60分钟；(3) When the residual material of the water enters the metering section of the screw machine, 1~5Kg of raw material is added to the screw machine. When the raw material enters the compression melting section of the screw machine, the melt spinning conveying system of the chemical fiber spinning is stopped. Keep the shutdown state for 10~60 minutes;
（4）在螺杆机不进料的情况下，重新启动化纤纺丝熔体熔融输送系统，将整个化纤纺丝熔体熔融输送系统中的熔体全部排出。(4) Restart the chemical fiber spinning melt conveying system without discharging the screw machine, and discharge all the melt in the entire chemical fiber spinning melt conveying system.
2. 根据权利要求1所述的方法，其中，步骤（2）中的加水时间控制在0.5~2分钟。2. The method according to claim 1, wherein the water addition time in the step (2) is controlled to be 0.5 to 2 minutes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010566313.5 | 2010-11-30 | ||
| CN2010105663135A CN102061528A (en) | 2010-11-30 | 2010-11-30 | Method for cleaning chemical fiber melt melting conveying system |
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| WO2012071954A1 true WO2012071954A1 (en) | 2012-06-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896120A (en) * | 2012-09-28 | 2013-01-30 | 苏州富莱克斯氨纶有限公司 | Method for cleaning melt-spinning polyurethane fiber pipe system |
| CN114790659A (en) * | 2022-03-25 | 2022-07-26 | 绍兴士林印染有限公司 | After-finishing process of mercerized cotton printing and dyeing fabric |
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| CN101182648A (en) * | 2006-11-14 | 2008-05-21 | 盐城化纤机械有限公司 | Fine-denier filament spinneret ethanediol cleaning process |
| CN201454927U (en) * | 2009-06-22 | 2010-05-12 | 桐昆集团股份有限公司 | Device for cleaning screen in silk-spinning machine |
| CN101805930A (en) * | 2010-04-28 | 2010-08-18 | 太原理工大学 | Method for cleaning polyphenylene sulfide melt spinning spinneret |
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| CN102896120A (en) * | 2012-09-28 | 2013-01-30 | 苏州富莱克斯氨纶有限公司 | Method for cleaning melt-spinning polyurethane fiber pipe system |
| CN114790659A (en) * | 2022-03-25 | 2022-07-26 | 绍兴士林印染有限公司 | After-finishing process of mercerized cotton printing and dyeing fabric |
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